42345737 has 32 divisors (see below), whose sum is σ = 54067200. Its totient is φ = 32332608.

The previous prime is 42345727. The next prime is 42345739. The reversal of 42345737 is 73754324.

It is not a de Polignac number, because 42345737 - 2¹² = 42341641 is a prime.

It is a super-2 number, since 2×42345737² = 3586322884146338, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42345697 and 42345706.

It is not an unprimeable number, because it can be changed into a prime (42345739) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 333368 + ... + 333494.

It is an arithmetic number, because the mean of its divisors is an integer number (1689600).

Almost surely, 2^42345737 is an apocalyptic number.

It is an amenable number.

42345737 is a deficient number, since it is larger than the sum of its proper divisors (11721463).

42345737 is a wasteful number, since it uses less digits than its factorization.

42345737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285.

The product of its digits is 70560, while the sum is 35.

The square root of 42345737 is about 6507.3602174768. The cubic root of 42345737 is about 348.5538616117.

The spelling of 42345737 in words is "forty-two million, three hundred forty-five thousand, seven hundred thirty-seven".